/*
 * Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 * for details. All rights reserved. Use of this source code is governed by a
 * BSD-style license that can be found in the LICENSE file.
 */
/**
 * @assertion It is a compile-time error if the default value of an optional
 * parameter is not a compile-time constant.
 * @description Checks that it is a compile-time error if the default value
 * of an optional parameter is not a compile-time constant.
 * @compile-error
 * @author rodionov
 */

main() {
  int x = 1;
  void func({var y: x}) {}
}
